OnePlus Ace 6 Ultra vs Xiaomi Mi Mix Alpha
The OnePlus Ace 6 Ultra (2026) runs on the MediaTek Dimensity 9500, while the Xiaomi Mi Mix Alpha (2019) runs on the Qualcomm Snapdragon 855+. By overall MobileRank rating, the OnePlus Ace 6 Ultra leads — 66/100 vs 18/100 (a 48-point difference). Key differences: the OnePlus Ace 6 Ultra has the bigger battery (8600 mAh vs 4050); the main camera is 50 MP vs 108 MP; the OnePlus Ace 6 Ultra is faster in AnTuTu (3,429,868 vs 859,084); the OnePlus Ace 6 Ultra has NFC for contactless payments, the Xiaomi Mi Mix Alpha doesn't; the OnePlus Ace 6 Ultra is noticeably lighter (217g vs 241g).
OnePlus Ace 6 Ultra
Xiaomi Mi Mix Alpha
- Higher AnTuTu: 3429868 vs 859084
- Better Geekbench Single: 3228 vs 1031
- Better Geekbench Multi: 9553 vs 2864
- Bigger battery: 8600 vs 4050 mAh
- Faster charging: 120W vs 40W
- Lighter: 217g vs 241g
- Higher performance (76/100 vs 2/100)
- Longer battery life (82/100 vs 18/100)
- Better display (100/100 vs 0/100)
- Better design/ergonomics (28/100 vs 0/100)
- Better value for money (72/100 vs 55/100)
- Better main camera: 108MP vs 50MP
- Better camera (48/100 vs 31/100)
Comparing the OnePlus Ace 6 Ultra vs the Xiaomi Mi Mix Alpha, the OnePlus Ace 6 Ultra scores 48 points higher (66/100 vs 18/100). In the "performance" category, the OnePlus Ace 6 Ultra leads (76/100 vs 2/100). In the "camera" category, the Xiaomi Mi Mix Alpha leads (48/100 vs 31/100). In the "battery" category, the OnePlus Ace 6 Ultra leads (82/100 vs 18/100). In the "value for money" category, the OnePlus Ace 6 Ultra leads (72/100 vs 55/100). In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (76/100 vs 2/100). In the "display" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (100/100 vs 0/100). In the "camera" category, the Xiaomi Mi Mix Alpha notably outperforms the OnePlus Ace 6 Ultra (48/100 vs 31/100). In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (82/100 vs 18/100). In the "design" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix Alpha (28/100 vs 0/100). In the "value for money" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix Alpha (72/100 vs 55/100).
| Specification | OnePlus Ace 6 Ultra | Xiaomi Mi Mix Alpha | |
|---|---|---|---|
| Processor | MediaTek Dimensity 9500 | Qualcomm Snapdragon 855+ | |
| AnTuTu | 3429868 | 859084 | |
| Geekbench Single | 3228 | 1031 | |
| Geekbench Multi | 9553 | 2864 | |
| Display | 6.8" AMOLED | 7.9" Flexible Super AMOLED | |
| Resolution | 1272x2772 | 2088x2250 | |
| Refresh rate | 165 Hz | — | |
| Battery | 8600 mAh | 4050 mAh | |
| Charging | 120W | 40W | |
| Main camera | 50 MP | 108 MP | |
| Ultrawide | 8 MP | 20 MP | |
| Telephoto | 0 MP | 12 MP | |
| Front camera | 16 MP | — | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB / 1TB | 512GB | |
| OS | Android 16 | Android 10 | |
| Brightness (peak) | 1800 nits | — | |
| NFC | yes | no | |
| Protection | IP66 | — | |
| Dimensions | 162.5×77.5×8.5 mm | 154.4×72.3×10.4 mm | |
| Weight | 217 g | 241 g | |
| Price | $555 | — |
OnePlus Ace 6 Ultra
- Main: 50MP f/f/1.8
- Ultrawide: 8MP
- Front: 16MP
Xiaomi Mi Mix Alpha
- Main: 108MP f/f/1.7
- Ultrawide: 20MP
- Telephoto: 12MP
- Front: —
OnePlus Ace 6 Ultra
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 165 Hz
Xiaomi Mi Mix Alpha
- 7.9" Flexible Super AMOLED
- Resolution: 2088x2250
- Refresh rate: —
OnePlus Ace 6 Ultra
- 8600 mAh
- Wired: 120W
- No wireless charging
Xiaomi Mi Mix Alpha
- 4050 mAh
- Wired: 40W
- No wireless charging
We compared OnePlus Ace 6 Ultra and Xiaomi Mi Mix Alpha, covering their specs and all relevant benchmarks.
OnePlus Ace 6 Ultra leads Xiaomi Mi Mix Alpha by 299.2% in our overall performance rating.
Xiaomi Mi Mix Alpha
Price unknownperformance
In the "performance" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (76/100 vs 2/100).
display
In the "display" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (100/100 vs 0/100).
camera
In the "camera" category, the Xiaomi Mi Mix Alpha notably outperforms the OnePlus Ace 6 Ultra (48/100 vs 31/100).
battery
In the "battery" category, the OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha (82/100 vs 18/100).
design
In the "design" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix Alpha (28/100 vs 0/100).
value for money
In the "value for money" category, the OnePlus Ace 6 Ultra notably outperforms the Xiaomi Mi Mix Alpha (72/100 vs 55/100).
Which is better: the OnePlus Ace 6 Ultra or the Xiaomi Mi Mix Alpha?
The OnePlus Ace 6 Ultra significantly outperforms the Xiaomi Mi Mix Alpha by 48 points (66/100 vs 18/100).
What is the rating of the OnePlus Ace 6 Ultra and the Xiaomi Mi Mix Alpha?
The OnePlus Ace 6 Ultra has a MobileRank rating of 66/100, the Xiaomi Mi Mix Alpha — 18/100.
Which has the better camera: the OnePlus Ace 6 Ultra or the Xiaomi Mi Mix Alpha?
The Xiaomi Mi Mix Alpha leads on camera score (48/100 vs 31/100).
Which is more powerful: the OnePlus Ace 6 Ultra or the Xiaomi Mi Mix Alpha?
The OnePlus Ace 6 Ultra leads on performance (76/100 vs 2/100).
Should you choose the OnePlus Ace 6 Ultra over the Xiaomi Mi Mix Alpha?
The OnePlus Ace 6 Ultra is a better fit for active users, those who care about battery life. The Xiaomi Mi Mix Alpha is a better fit for everyday use.